Prosecutor Brian Altman QC said Irfan Naseer and Irfan Khalid had started formulating the bomb plot after returning from two visits to Pakistan where they had learned how to make bombs and use poisons.
He told the jury that both men had made martyrdom videos in Pakistan which would have been broadcast if the had blown themselves up, to justify the "trail of destruction".
The men are accused of using Ashik Ali's flat in Birmingham as a 'safe house', to research and experiment with chemicals to make home made bombs and IEDs.
One of three men from Birmingham charged with planning a suicide bombing attack has told a jury he pretended to be a terrorist as a defence
Jury in "bomb plotter" trial heard how the men discussed how to make explosives, and how many people they could kill.
The latest on the trial of three men from Birmingham who are on trial accused of plotting a suicide bombing campaign in the UK.